A drum-shaped tooth sprocket wheel

Abstract

The present invention relates to the technical field of driving components of shearers, and discloses a drum-shaped tooth sprocket, which includes a main tooth sprocket assembly. A quick-installation component for quick installation is arranged inside the main tooth sprocket assembly. A fixing seat assembly is connected to the top of the main tooth sprocket assembly. The main tooth sprocket assembly includes a main tooth sprocket body. A first round hole is opened at the center of the main tooth sprocket body. A special-shaped installation groove is opened inside the main tooth sprocket body. The special-shaped installation groove is used to adapt to the movement of the quick-installation component. When the quick-installation component rotates to be fixed by the fixing seat assembly, the quick installation is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of driving components of coal shearers, and particularly relates to a crowned gear sprocket wheel. Background Art

[0002] The main function of the crowned gear sprocket wheel in a coal shearer is to transmit the power of an engine or a motor to other components or machines. The power is transmitted to another crowned gear sprocket wheel through the meshing of the crowned gear sprocket wheels, thereby driving the operation of other mechanical components.

[0003] Existing crowned gear sprocket wheels are usually fixed with bolts. However, when using bolts for fixation, operators need to operate with the aid of tools. During the operation process, attention needs to be paid to the tightening torque and tightening sequence of the bolts to avoid connection looseness or damage caused by improper operation or improper tightening. If the threads of the crowned gear sprocket wheel body and the fixed shaft are worn, corresponding replacements are required. The operation is complex and the cost is relatively high.

[0004] Therefore, the present invention provides a crowned gear sprocket wheel. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0006] The present invention provides a crowned gear sprocket wheel, including a main crowned gear sprocket wheel assembly. An assembly for quick installation is arranged inside the main crowned gear sprocket wheel assembly. A fixed seat assembly is connected to the top of the main crowned gear sprocket wheel assembly. The main crowned gear sprocket wheel assembly includes a main crowned gear sprocket wheel body. A first round hole is opened at the center of the main crowned gear sprocket wheel body. A special-shaped installation groove is opened inside the main crowned gear sprocket wheel body. The special-shaped installation groove is used to adapt to the movement of the quick installation assembly. When the quick installation assembly rotates to be fixed by the fixed seat assembly, the quick installation is completed.

[0007] Preferably, the quick installation assembly includes an adjusting disk and a limiting disk. Arc-shaped holes are opened around the top of the adjusting disk. A first adjusting handle for driving the rotation of the adjusting disk is fixedly connected to the top of the adjusting disk. Limiting holes are opened around the top of the limiting disk. A driving rod is clamped inside the first adjusting handle. Limiting blocks are fixedly connected to the outer sides of the top and the middle of the driving rod. A clamping block is fixedly connected to the bottom of the driving rod.

[0008] Preferably, the first adjusting handle includes a handle rod body, an outer side of the top of the handle rod body is fixedly connected with a friction ring, both sides of the middle of the handle rod body are provided with square grooves, inner walls of the square grooves of the handle rod body are fixedly connected with first springs, one side of each first spring away from the square groove of the handle rod body is fixedly connected with a clamping block, an inclined angle is arranged on one side of the clamping block away from the handle rod body, one side of each first spring close to the handle rod body is fixedly connected with an electric push rod, and one side of the electric push rod away from the first spring is fixedly connected with a controller.

[0009] Preferably, the fixing seat assembly includes two fixing seat bodies, clamping grooves are formed in side walls of the two fixing seat bodies, and the size of each clamping groove is in clearance fit with the size of the corresponding clamping block.

[0010] Quickly install this product so that this product is fixed outside the sprocket installation shaft.

[0011] Preferably, the fixing seat assembly further includes two push rods, a second spring is arranged between the two push rods, two ends of the second spring are respectively fixedly connected with the two push rods, a third movable groove is formed in an inner wall of each clamping groove, and one side of each push rod close to the corresponding fixing seat body is movably clamped inside the third movable groove.

[0012] Quickly disassemble this product so that this product is separated from the sprocket installation shaft.

[0013] Preferably, an installation ring groove is formed in an outer side of the middle of the main sprocket body, convex ring grooves are formed in both the top and the bottom of the installation ring groove, and a sub-sprocket assembly is arranged outside the installation ring groove.

[0014] Preferably, the sub-sprocket assembly includes a sub-sprocket body, convex ring blocks in clearance fit with the convex ring grooves are fixedly connected to both the top and the bottom of the sub-sprocket body, a second adjusting handle is fixedly connected to the top of the convex ring block located at the top, a second round hole is formed in the center of the sub-sprocket body, an inner diameter of the second round hole is in clearance fit with an outer diameter of the installation ring groove, and the structure of the second adjusting handle is the same as that of the first adjusting handle.

[0015] Adjust the transmission ratio of this product, and the adjustable range of the output power of the shearer is wider.

[0016] Preferably, a first movable groove in clearance fit with the bottom of the first adjusting handle is formed in the top of the main sprocket body, and a second movable groove in clearance fit with the top of the second adjusting handle is formed in the bottom of the main sprocket body.

[0017] Adapt to the rotation of the quick-installation component and the sub-sprocket component and limit the rotation range of the quick-installation component and the sub-sprocket component.

[0018] The beneficial effects of the present invention are as follows: For the drum-shaped tooth sprocket of the present invention, by providing a quick-installation component that cooperates with the fixed-seat component located at the top of the main tooth sprocket component, the first adjustment handle moves in the first movable slot to drive the adjustment disk to rotate, causing the clamping blocks to gather and tightly hold the tooth sprocket mounting shaft, and fixing the first adjustment handle through the card slot, thereby fixing the position of the clamping blocks, achieving the quick installation of this product. Then, by squeezing the two push rods to release the fixation of the first adjustment handle and the fixed-seat main body, quick disassembly is realized. The overall disassembly and installation are time-saving and labor-saving, and can be achieved without other operating tools.

[0019] For the drum-shaped tooth sprocket of the present invention, by providing a secondary tooth sprocket component that cooperates with the fixed-seat component located at the bottom of the main tooth sprocket component, the second adjustment handle drives the secondary tooth sprocket main body to rotate, making the main tooth sprocket main body and the secondary tooth sprocket main body in a relatively misaligned state. At this time, the transmission ratio of this product is higher, and the conventional transmission ratio can be restored by resetting the secondary tooth sprocket main body, and the adjustable range of the output power of the shearer is wider. Brief Description of the Drawings

[0020] Figure 1 is the top perspective view of the overall structure of the present invention;

[0021] Figure 2 is the bottom perspective view of the overall structure of the present invention;

[0022] Figure 3 is the schematic cross-sectional structure diagram of the main tooth sprocket component of the present invention;

[0023] Figure 4 is the exploded schematic diagram of the structure of the quick-installation component of the present invention;

[0024] Figure 5 is the schematic cross-sectional structure diagram of the secondary tooth sprocket component of the present invention;

[0025] Figure 6 is the schematic cross-sectional structure diagram of the first adjustment handle of the present invention;

[0026] Figure 7 is the schematic cross-sectional structure diagram of the fixed-seat component of the present invention.

[0027] Explanation of the Reference Numerals:

[0028] 1. Main sprocket wheel assembly; 101. Main sprocket wheel body; 102. Convex ring groove; 103. Mounting ring groove; 104. First round hole; 105. Special-shaped mounting groove; 106. First movable groove; 107. Second movable groove; 2. Quick installation assembly; 201. Adjusting disk; 202. First adjusting handle; 2021. Friction ring; 2022. Handle rod body; 2023. First spring; 2024. Block; 2025. Controller; 2026. Electric push rod; 203. Limit disk; 204. Limit hole; 205. Driving rod; 206. Limit block; 207. Clamping block; 208. Arc-shaped hole; 3. Sub-sprocket wheel assembly; 301. Sub-sprocket wheel body; 302. Convex ring block; 303. Second round hole; 304. Second adjusting handle; 4. Fixed seat assembly; 401. Fixed seat body; 402. Push rod; 403. Second spring; 404. Card slot; 405. Third movable groove. Detailed implementation manners

[0029] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein, and the functions and arrangements of the elements discussed can be changed without departing from the scope of protection of the content of this specification. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0030] As Figures 1 to 7 shown, a drum-shaped tooth sprocket wheel according to an embodiment of the present invention is hereinafter referred to with emphasis to Figure 1 , Figure 2 , Figure 3 , and includes a main sprocket wheel assembly 1. An inner side of the main sprocket wheel assembly 1 is provided with a quick installation assembly 2 for quick installation. A top of the main sprocket wheel assembly 1 is connected to a fixed seat assembly 4. The main sprocket wheel assembly 1 includes a main sprocket wheel body 101. A first round hole 104 is opened at a center of the main sprocket wheel body 101. A special-shaped mounting groove 105 is opened at an inner side of the main sprocket wheel body 101. The special-shaped mounting groove 105 is used to adapt to the movement of the quick installation assembly 2. When the quick installation assembly 2 rotates to be fixed by the fixed seat assembly 4, the quick installation is completed.

[0031] Please refer with emphasis to Figure 3 , Figure 4, the quick - installation component 2 includes an adjustment disk 201 and a limit disk 203. Arc - shaped holes 208 are formed around the top of the adjustment disk 201. A first adjustment handle 202 for driving the rotation of the adjustment disk 201 is fixedly connected to the top of the adjustment disk 201. Limit holes 204 are formed around the top of the limit disk 203. A driving rod 205 is clamped inside the first adjustment handle 202. Limit blocks 206 are fixedly connected to the outer sides of the top and middle of the driving rod 205. A clamping block 207 is fixedly connected to the bottom of the driving rod 205.

[0032] Specifically, the limit block 206 at the top is located on the top of the adjustment disk 201, and the limit block 206 in the middle is located between the adjustment disk 201 and the limit disk 203, and the distance between the adjustment disk 201 and the limit disk 203 has a clearance fit with the height of the limit block 206. The adjustment disk 201 is rotatably connected to the special - shaped installation groove 105, and the limit disk 203 is fixedly connected to the special - shaped installation groove 105.

[0033] Please refer specifically to Figure 6 , the first adjustment handle 202 includes a handle rod body 2022. A friction ring 2021 is fixedly connected to the outer side of the top of the handle rod body 2022. Square grooves are opened on both sides of the middle of the handle rod body 2022. A first spring 2023 is fixedly connected to the inner wall of the square groove of the handle rod body 2022. A clamping block 2024 is fixedly connected to the side of the first spring 2023 away from the square groove of the handle rod body 2022. An inclined angle is provided on the side of the clamping block 2024 away from the handle rod body 2022. An electric push rod 2026 is fixedly connected to the side of the first spring 2023 close to the handle rod body 2022. A controller 2025 is fixedly connected to the side of the electric push rod 2026 away from the first spring 2023.

[0034] Specifically, the bottom of the handle rod body 2022 is fixedly connected to the top of the adjustment disk 201, and the height of the square groove of the handle rod body 2022 has a clearance fit with the height of the clamping block 2024.

[0035] Please refer specifically to Figure 7 , the fixed - seat component 4 includes two fixed - seat bodies 401. Clamping grooves 404 are opened on the side walls of the two fixed - seat bodies 401 close to each other. The size of the clamping groove 404 has a clearance fit with the size of the clamping block 2024.

[0036] Specifically, when the clamping block 2024 moves near the fixed - seat body 401, the clamping block 2024 will be squeezed by the fixed - seat body 401 near the first movable groove 106, causing the clamping block 2024 to shrink into the square groove of the handle rod body 2022 until the clamping block 2024 moves to the periphery of the clamping groove 404 and the clamping block 2024 loses the extrusion. Under the action of the first spring 2023, the clamping block 2024 extends out and is clamped in the clamping groove 404 to complete the fixation;

[0037] Grab the first adjustment handle 202 and move it in the first movable slot 106, moving from the side of the first movable slot 106 away from the fixed seat assembly 4 towards the direction close to the fixed seat assembly 4. The first adjustment handle 202 drives the adjustment disc 201 to rotate. Since the limit disc 203 is fixed and the limit hole 204 is used to limit the top of the driving rod 205, when the adjustment disc 201 rotates, the position of the arc-shaped hole 208 will move. Therefore, the position where the arc-shaped hole 208 and the limit hole 204 coincide gradually moves towards the direction close to the center of the adjustment disc 201, thereby driving the driving rod 205 to approach the center of the adjustment disc 201 under the common limitation of the arc-shaped hole 208 and the limit hole 204, thus adjusting the distance between the three clamping blocks 207 to decrease. When the first adjustment handle 202 is clamped in the card slot 404, the installation is completed. The three clamping blocks 207 jointly hold the installation shaft, and the inner diameter formed between the three clamping blocks 207 is smaller than the outer side of the sprocket installation shaft, and this product can be stably fixed on the outer side of the sprocket installation shaft.

[0038] Please refer specifically to Figure 7 , the fixed seat assembly 4 further includes two push rods 402. A second spring 403 is arranged between the two push rods 402. The two ends of the second spring 403 are respectively fixedly connected to the two push rods 402. The inner wall of the card slot 404 is provided with a third movable slot 405, and one side of the two push rods 402 close to the fixed seat main body 401 is respectively movably clamped inside the two corresponding third movable slots 405.

[0039] Specifically, after the installation is completed, the first adjustment handle 202 will be clamped and fixed inside the fixed seat assembly 4, that is, the block 2024 is clamped inside the card slot 404, squeezing the two push rods 402 to compress the second spring 403. The block 2024 is pushed out of the card slot 404 through the push rod 402 and the first adjustment handle 202 is pulled away from the card slot 404 to complete the disassembly.

[0040] Please refer specifically to Figure 3 , on the outer side of the middle part of the main sprocket body 101, an installation ring groove 103 is provided. Convex ring grooves 102 are provided at the top and bottom of the installation ring groove 103. The secondary sprocket assembly 3 is rotatably connected to the outer side of the installation ring groove 103.

[0041] Please refer specifically to Figure 5 , the secondary sprocket assembly 3 includes a secondary sprocket body 301. Convex ring blocks 302 that are in clearance fit with the convex ring grooves 102 are fixedly connected to the top and bottom of the secondary sprocket body 301. A second adjustment handle 304 is fixedly connected to the top of the convex ring block 302 located at the top. A second round hole 303 is provided at the center of the secondary sprocket body 301. The inner diameter of the second round hole 303 is in clearance fit with the outer diameter of the installation ring groove 103. The structure of the second adjustment handle 304 is the same as the structure of the first adjustment handle 202.

[0042] Specifically, first, squeeze the two push rods 402 on one side of the second movable slot 107 during the disassembly process as described above, so that the second adjusting handle 304 disengages from the fixed seat body 401. Then, grasp the second adjusting handle 304 and move it in the second movable slot 107, moving from the fixed seat assembly 4 on one side of the second movable slot 107 to the other side of the second movable slot 107, thereby driving the convex ring block 302 and the secondary sprocket body 301 to rotate in the convex ring slot 102, so as to adjust the teeth of the secondary sprocket body 301 to be relatively staggered with the teeth of the main sprocket body 101, causing the midpoint of each tooth of the secondary sprocket body 301 to be on the same vertical line as the midpoints of two adjacent teeth of the main sprocket body 101. At this time, the second adjusting handle 304 is fixed in the fixed seat assembly 4 on the other side of the second movable slot 107, and the number of teeth of this product is doubled;

[0043] The secondary sprocket assembly 3 has two states. As shown in Figure 1 and Figure 2 the state shown, the secondary sprocket assembly 3 is in the normal transmission ratio state, and the teeth of the main sprocket body 101 and the secondary sprocket body 301 correspond one by one. When the teeth of the secondary sprocket body 301 are adjusted to be relatively staggered with the teeth of the main sprocket body 101, causing the midpoint of each tooth of the secondary sprocket body 301 to be on the same vertical line as the midpoints of two adjacent teeth of the main sprocket body 101, it is in the relative dislocation state at this time.

[0044] Please refer specifically to Figure 2 and Figure 3 , a first movable slot 106 with a clearance fit with the bottom of the first adjusting handle 202 is provided at the top of the main sprocket body 101, and a second movable slot 107 with a clearance fit with the top of the second adjusting handle 304 is provided at the bottom of the main sprocket body 101.

[0045] Specifically, the bottom of the first movable slot 106 communicates with the special-shaped installation slot 105, the top of the second movable slot 107 communicates with the convex ring slot 102, and the central angle corresponding to the arc length of the first movable slot 106 is the same as the angle that the first adjusting handle 202 can drive the adjusting disc 201 to rotate, and the central angle corresponding to the arc length of the second movable slot 107 is the same as the angle that the second adjusting handle 304 drives the secondary sprocket body 301 to rotate.

[0046] Working principle

[0047] When using this product, first, put the whole product on the outside of the shearer sprocket installation shaft, and the installation shaft passes through the first round hole 104;

[0048] During installation:

[0049] Grasp the first adjusting handle 202 and move it in the first movable slot 106, moving from the side of the first movable slot 106 away from the fixed seat assembly 4 towards the direction close to the fixed seat assembly 4. The first adjusting handle 202 drives the adjusting disc 201 to rotate. Since the limiting disc 203 is fixed and the limiting hole 204 is used to limit the top of the driving rod 205, when the adjusting disc 201 rotates, the position of the arc-shaped hole 208 will move. Therefore, the position where the arc-shaped hole 208 and the limiting hole 204 coincide gradually moves towards the direction close to the center of the adjusting disc 201, thereby driving the driving rod 205 to approach the center of the adjusting disc 201 under the joint limitation of the arc-shaped hole 208 and the limiting hole 204, so as to adjust the distance between the three clamping blocks 207 to decrease. When the first adjusting handle 202 is clamped in the clamping slot 404, the installation is completed. The three clamping blocks 207 jointly hold the installation shaft, and the inner diameter formed between the three clamping blocks 207 is smaller than the outer side of the sprocket installation shaft, and this product can be stably fixed on the outer side of the sprocket installation shaft;

[0050] During disassembly:

[0051] After the installation is completed, the first adjusting handle 202 will be clamped and fixed inside the fixed seat assembly 4, that is, the clamping block 2024 is clamped inside the clamping slot 404, squeezing the two push rods 402 to compress the second spring 403. Push the clamping block 2024 out of the clamping slot 404 through the push rod 402 and pull the first adjusting handle 202 away from the clamping slot 404 to complete the disassembly. And when the sprocket does not require a more efficient transmission ratio, the main sprocket body 101 can be positioned with the second round hole 303 by pushing the first spring 2023 through the clamping block 2024. When a more efficient transmission ratio is required, control the electric push rod 2026 to extend and position it through the controller 2025, so as to ensure that when the sprocket is transmitting power, the relative position of the main sprocket body 101 and the second round hole 303 remains unchanged, avoiding the relative displacement of the main sprocket body 101 and the second round hole 303 caused by high-speed rotation;

[0052] If a more efficient transmission ratio is required, the number of teeth of this product can be doubled by adjusting the secondary sprocket assembly 3:

[0053] First, as in the above disassembly process, squeeze the two push rods 402 located on one side of the second movable groove 107 to disengage the second adjusting handle 304 from the fixed seat body 401. Then, grasp the second adjusting handle 304 and move it in the second movable groove 107, moving from the fixed seat assembly 4 on one side of the second movable groove 107 to the other side of the second movable groove 107, thereby driving the convex ring block 302 and the auxiliary sprocket body 301 to rotate in the convex ring groove 102 to adjust the teeth of the auxiliary sprocket body 301 to be relatively offset from the teeth of the main sprocket body 101, so that the midpoint of each tooth of the auxiliary sprocket body 301 is on the same vertical line as the midpoints of two adjacent teeth of the main sprocket body 101. At this time, the second adjusting handle 304 is fixed in the fixed seat assembly 4 on the other side of the second movable groove 107, doubling the number of teeth of this product.

[0054] The embodiments of the specific implementation manners have been described above, but the present embodiment is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative and not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A drum-shaped tooth sprocket, characterized in that: It includes a main toothed sprocket assembly (1). An installation quickening assembly (2) for quick installation is arranged inside the main toothed sprocket assembly (1). A fixed seat assembly (4) is connected to the top of the main toothed sprocket assembly (1). The main toothed sprocket assembly (1) includes a main toothed sprocket body (101). A first round hole (104) is opened at the center of the main toothed sprocket body (101). A special-shaped installation groove (105) is opened inside the main toothed sprocket body (101). The special-shaped installation groove (105) is used to adapt to the movement of the installation quickening assembly (2). When the installation quickening assembly (2) rotates to be fixed by the fixed seat assembly (4), the quick installation is completed. The installation quickening assembly (2) includes an adjustment disk (201) and a limit disk (203). Arc-shaped holes (208) are opened around the top of the adjustment disk (201). A first adjustment handle (202) for driving the adjustment disk (201) to rotate is fixedly connected to the top of the adjustment disk (201). Limit holes (204) are opened around the top of the limit disk (203). A driving rod (205) is clamped inside the first adjustment handle (202). Limit blocks (206) are fixedly connected to the outer sides of the top and middle parts of the driving rod (205). A clamping block (207) is fixedly connected to the bottom of the driving rod (205).

2. The drum-shaped tooth sprocket according to claim 1, characterized in that: The first adjustment handle (202) includes a handle rod body (2022). A friction ring (2021) is fixedly connected to the outer side of the top of the handle rod body (2022). Square grooves are opened on both sides of the middle part of the handle rod body (2022). A first spring (2023) is fixedly connected to the inner wall of the square groove of the handle rod body (2022). A clamping block (2024) is fixedly connected to the side of the first spring (2023) away from the square groove of the handle rod body (2022). An inclined angle is arranged on the side of the clamping block (2024) away from the handle rod body (2022). An electric push rod (2026) is fixedly connected to the side of the first spring (2023) close to the handle rod body (2022). A controller (2025) is fixedly connected to the side of the electric push rod (2026) away from the first spring (2023).

3. A drum-shaped tooth sprocket according to claim 2, characterized in that: The fixed seat assembly (4) includes two fixed seat bodies (401). Clamping grooves (404) are opened on the side walls of the two fixed seat bodies (401). The size of the clamping groove (404) has a clearance fit with the size of the clamping block (2024).

4. A drum-shaped tooth sprocket according to claim 3, characterized in that: The fixed seat assembly (4) further includes two push rods (402). A second spring (403) is arranged between the two push rods (402). The two ends of the second spring (403) are respectively fixedly connected to the two push rods (402). A third movable groove (405) is opened on the inner wall of the clamping groove (404). The side of the push rod (402) close to the fixed seat body (401) is movably clamped inside the third movable groove (405).

5. A drum-shaped tooth sprocket according to claim 2, characterized in that: An installation ring groove (103) is provided on the outer side of the middle part of the main tooth sprocket body (101). Convex ring grooves (102) are provided at both the top and the bottom of the installation ring groove (103). A secondary tooth sprocket assembly (3) is arranged on the outer side of the installation ring groove (103).

6. A drum-shaped tooth sprocket according to claim 5, characterized in that: The secondary tooth sprocket assembly (3) includes a secondary tooth sprocket body (301). Convex ring blocks (302) which are in clearance fit with the convex ring grooves (102) are fixedly connected to both the top and the bottom of the secondary tooth sprocket body (301). A second adjusting handle (304) is fixedly connected to the top of the convex ring block (302) located at the top. A second round hole (303) is provided at the center of the secondary tooth sprocket body (301). The inner diameter of the second round hole (303) is in clearance fit with the outer diameter of the installation ring groove (103). The structure of the second adjusting handle (304) is the same as that of the first adjusting handle (202).

7. A drum-shaped tooth sprocket according to claim 6, characterized in that: A first movable groove (106) which is in clearance fit with the bottom of the first adjusting handle (202) is provided at the top of the main tooth sprocket body (101). A second movable groove (107) which is in clearance fit with the top of the second adjusting handle (304) is provided at the bottom of the main tooth sprocket body (101).

Images